Three ASHRAE projects on flammable refrigerants and their status are presented: ASHRAE 1806 Flammable Refrigerants Post-ignition Risk Assessment, ASHRAE 1807: Guidelines for flammable refrigerant handling, transporting, storing and equipment servicing and installation and ASHRAE 1808: Servicing and Installing Equipment using Flammable Refrigerants: Assessment of Field-made Mechanical Joints.